ORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY INCLUDING THE SAME

摘要

An organic electroluminescent device and display, the device including a first electrode; a second electrode on the first electrode; an emission layer between the first and second electrodes; and an electron transport layer between the emission layer and the second electrode, the electron transport layer including a first electron transport layer on the emission layer; a second electron transport layer on the first electron transport layer; and a third electron transport layer on the second electron transport layer, wherein the first electron transport layer includes a first electron transport material, the second electron transport layer includes the first electron transport material, a second electron transport material, and a third electron transport material, the third electron transport layer includes the second electron transport material and the third electron transport material, and the first, second, and third electron transport materials are different from one another.

主权项

1. An organic electroluminescent device, comprising:
a first electrode; a second electrode on the first electrode; an emission layer between the first electrode and the second electrode; and an electron transport layer between the emission layer and the second electrode, the electron transport layer including:
a first electron transport layer on the emission layer;a second electron transport layer on the first electron transport layer; anda third electron transport layer on the second electron transport layer, wherein:
the first electron transport layer includes a first electron transport material,the second electron transport layer includes the first electron transport material, a second electron transport material, and a third electron transport material,the third electron transport layer includes the second electron transport material and the third electron transport material, andthe first electron transport material, the second electron transport material, and the third electron transport material are different from one another.